650113540 has 24 divisors (see below), whose sum is σ = 1365743232. Its totient is φ = 259949280.

The previous prime is 650113523. The next prime is 650113567. The reversal of 650113540 is 45311056.

It is a super-2 number, since 2×650113540² = 845295229782663200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78267 + ... + 86173.

It is an arithmetic number, because the mean of its divisors is an integer number (56905968).

Almost surely, 2^650113540 is an apocalyptic number.

It is an amenable number.

650113540 is an abundant number, since it is smaller than the sum of its proper divisors (715629692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650113540 is a wasteful number, since it uses less digits than its factorization.

650113540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12027 (or 12025 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 650113540 is about 25497.3241733324. The cubic root of 650113540 is about 866.2895397316.

Adding to 650113540 its reverse (45311056), we get a palindrome (695424596).

The spelling of 650113540 in words is "six hundred fifty million, one hundred thirteen thousand, five hundred forty".